CN216153506U - Tire with mute structure - Google Patents

Abstract

The utility model discloses a tire with a silent structure, which comprises a tire crown part, tire side parts and a tire bead part, wherein the tire side parts and the tire bead part are arranged on two sides of the tire crown part; what is different from the traditional tire is that a mute structural layer which is half a rubber part is added in the tire, the cavity noise of the tire can be reduced, the mute structural layer and the tire are integrally vulcanized and produced, meanwhile, the tire air leakage risk caused by polishing the airtight layer is reduced because the post-treatment procedures of polishing the airtight layer in the tire and adhering the sound-absorbing material are not needed, and in addition, the personnel and equipment investment is reduced and the production efficiency of the tire is improved because the subsequent processing procedure of adhering the sound-absorbing material is cancelled.

Description

Tire with mute structure

Technical Field

The utility model relates to a tire, in particular to a tire with a silent structure.

Background

As the demands of consumers on the performance of automobiles become higher, the attention of consumers on the cavity noise of tires is also increased. In the driving process of the automobile, if the cavity noise of the tire is too high, the sound pressure can press eardrums of a driver and passengers, and the driver and the passengers are uncomfortable. Generally, a tire comprises: a crown portion, a sidewall portion, a bead portion; the tire crown part comprises a tread layer, a cap ply layer, a belt ply layer, a tire body layer and an air-tight layer. At present, the common method is to bond sound-absorbing materials under the inner liner of the finished tire to increase the air vibration damping in the cavity of the tire so as to reduce the cavity noise of the tire.

Under the conditions of high-speed rotation of a tire, overhigh ambient temperature, overlow ambient temperature, long service time of the tire and the like, the traditional method for adhering the sound-absorbing material easily causes the sound-absorbing material to fall off or be damaged due to the viscosity change of the adhering rubber material, and simultaneously needs to polish the air-tight layer of the tire, so that the viscosity of the adhering rubber material to the tire is increased, the polished lining can be correspondingly thinned, the risk of air leakage of the tire exists, in addition, the method for adhering the sound-absorbing material needs to additionally process the finished tire, the increased production procedures need to increase the investment of personnel and equipment, and meanwhile, the production efficiency of the tire can also be reduced.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a tire with a silent structure, so as to solve the above problems.

In order to achieve the purpose, the utility model provides the following technical scheme:

a tire with a silent structure comprises a crown part, a sidewall part and a bead part, wherein the sidewall part and the bead part are arranged on two sides of the crown part;

the tread layer, the cap ply layer, the belt ply layer, the carcass layer, the air-tight layer and the mute structure layer are sequentially arranged from top to bottom;

the mute structural layer is provided with a mute hole.

Preferably, the thickness of the mute structure layer is between 2mm and 10mm, and the width of the mute structure layer is between the width of the belt layer +10mm and the width of the belt layer +30 mm.

Preferably, the mute orifice is recessed into the mute construction layer.

Preferably, the shape of the silence hole is irregular.

Preferably, the mute hole forms a mute hole region in the mute structural layer in the tire circumferential direction.

Preferably, the distance between the edge of the mute hole region and the edge of the mute structure layer is between 15mm and 30 mm.

Preferably, pore walls are formed between the silencing holes, and the thickness of the pore walls is between 0.5mm and 5 mm.

Preferably, the plane area of the orifice of the mute hole is 1mm²To 36mm²And the depth of the mute hole is between 2mm and 10 mm.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model provides a tire with a mute structure, which is applied to the structural design of the tire and reduces the cavity noise of the tire.

2. According to the tire with the mute structure, the mute structural layer and the tire are integrally vulcanized, rubber forms a cross-sulfur key through high vulcanization temperature, and the mute structural layer is combined with the air-tight layer more tightly, so that the problem that an adhered rubber material is influenced by factors such as high-speed rotation, overhigh temperature, overlow temperature and the like of the tire to cause the falling and damage of a sound-absorbing material is solved.

3. According to the tire with the mute structure, the post-treatment procedures of polishing the inner air-tight layer of the tire and adhering the sound-absorbing material are not needed, so that the air leakage risk of the tire caused by polishing the air-tight layer is reduced; meanwhile, the subsequent processing procedure of adhering the sound-absorbing material is cancelled, so that the personnel and equipment investment is reduced, and the production efficiency of the tire is improved.

Drawings

Fig. 1 is a schematic structural diagram of a tire with a silent structure.

Fig. 2 is a schematic structural view of a mute structural layer in a mute structural tire.

In the figure: 1. a crown portion; 11. a tread layer; 12. a cap ply layer; 13. a belt ply; 14. a carcass layer; 15. an airtight layer; 16. a mute structure layer; 2. a sidewall portion; 3. a bead portion; 4. a mute hole area; 41. a sound silencing hole; 42. a bore wall.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, a tire with a silent structure comprises a crown part 1, a sidewall part 2 and a bead part 3, wherein the sidewall part 2 and the bead part 3 are arranged on two sides of the crown part 1, the crown part 1 is composed of a tread layer 11, a cap ply layer 12, a belt layer 13, a carcass layer 14, an air-tight layer 15 and a silent structural layer 16 for reducing noise of a tire cavity, a silent hole 41 is designed in the silent structural layer 16, the silent hole 41 is recessed in the silent structural layer 16, and the thickness of the silent structural layer 16 is between 2mm and 10 mm. Preferably, the thickness of the sound-damping construction layer 16 is designed to be between 3mm and 5 mm. Here, if the thickness of the noise reduction structure layer 16 is designed to be too small, the depth of the noise reduction holes 41 recessed into the noise reduction structure layer 16 becomes correspondingly small, resulting in poor noise reduction. If the thickness of the mute structural layer 16 is too large, the overall weight of the tire will be increased too much, resulting in waste of cost. The width of the mute construction layer 16 is between the width +10mm of the belt layer 13 and the width +30mm of the belt layer 13. Preferably, the width of the silencing construction layer 16 is designed to be between the width +18mm of the belt layer 13 and the width +22mm of the belt layer 13.

As shown in fig. 2, the mute holes 41 recessed into the mute construction layer 16 are present in an irregular shape. The arrangement of the silencing holes 41 adopts non-cyclic arrangement, so that the occurrence of noise resonance in the cavity is reduced, and the cavity noise is reduced.

The plane area of the orifice of the sound silencing hole 41 is 1mm²To 36mm²Preferably, the plane area of the opening of the sound hole 41 is 4mm²To 16mm²In the meantime. If the plane area of the orifice is too small, the mute hole 41 is pressed and closed by the tension and the like after the tire is inflated, and the mute effect is lost.

The sound-deadening holes 41 are formed to have a hole depth of 2mm to 10mm, preferably, 3mm to 5 mm. If the hole depth is too small, the vibration damping of the air in the tire cavity by the silencing holes 41 becomes small, and the effect of reducing the cavity noise of the tire is reduced.

In the tire circumferential direction, that is, the tire rotation direction, the silent holes 41 are arranged and combined to form the silent hole region 4, and the distance "L" between the side of the silent hole region 4 and the side of the silent structural layer 16 is in the range of 15mm to 30 mm. Preferably, the distance "L" is designed to be in the range of 20mm to 25 mm. It should be noted here that the border of the mute hole region 4 should not exceed the 1# belt border and be horizontally spaced from the 1# belt border by not less than 10 mm. If the side portion of the mute hole region 4 is too close to the side portion of the 1# belt, stress concentration occurs at the side portion, heat generation increases during use of the tire, and durability of the tire is deteriorated.

The hole walls 42 are formed between the sound holes 41, and the thickness of the hole walls 42 is formed between 0.5mm and 5 mm. Preferably, the thickness of the hole wall 42 is formed between 2mm and 4 mm. If the thickness of the hole wall is too small, the strength of the hole wall is reduced, the whole shape of the silencing hole 41 cannot be supported sufficiently in the use process of the tire, and the silencing effect is reduced. If the thickness of the hole wall is too large, the space occupied by the hole wall is correspondingly increased, so that the number of the mute holes 41 is indirectly reduced, and the mute effect is reduced.

The utility model provides a tire with a mute structure, which is applied to the structural design of the tire and reduces the cavity noise of the tire. The tire is characterized by the addition of a silent structural layer 16 of rubber halves to the tire structure. In the forming process of tire production, firstly attaching the mute structural layer 16, then attaching the air-tight layer 15, the subsequent forming process is consistent with the forming process of a common tire, the formed tire drum is integrally vulcanized through a vulcanizing process to produce a finished tire, because the mute structural layer 16 and the tire are integrally vulcanized and produced, rubber forms a cross-sulfur key through vulcanization at high temperature, and the mute structural layer 16 and the air-tight layer 15 are combined more tightly, thereby solving the problem that the adhesive material is influenced by factors such as high-speed rotation of the tire, overhigh temperature, overlow temperature and the like to cause the falling and damage of the sound-absorbing material, and simultaneously reducing the air leakage risk of the tire caused by polishing the air-tight layer 15 because the air-tight layer 15 in the tire is not needed to be polished and post-treatment procedures of adhering the sound-absorbing material are not needed; meanwhile, the subsequent processing procedure of adhering the sound-absorbing material is cancelled, so that the personnel and equipment investment is reduced, and the production efficiency of the tire is improved.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. A tire with a silent structure comprises a crown part (1), side wall parts (2) arranged at two sides of the crown part (1) and a bead part (3), and is characterized in that the crown part (1) consists of a tread layer (11), a cap ply layer (12), a belt layer (13), a carcass layer (14), an air-tight layer (15) and a silent structural layer (16) for reducing the noise of a tire cavity;

the tread layer (11), the cap ply layer (12), the belt ply layer (13), the carcass layer (14), the air-tight layer (15) and the mute structure layer (16) are sequentially arranged from top to bottom;

the mute structural layer (16) is provided with a mute hole (41).

2. A tyre with a silent structure, as claimed in claim 1, wherein said silent structure (16) has a thickness comprised between 2mm and 10mm, and said silent structure (16) has a width comprised between +10mm and +30mm of the width of the belt (13).

3. A tire of silent structure according to claim 1, wherein said silent holes (41) are recessed in the silent structural layer (16).

4. A tire of silent structure according to claim 1, wherein said silent holes (41) are irregularly shaped.

5. A tire of silent structure in accordance with claim 1, wherein said silent holes (41) form silent hole regions (4) in the silent structural layer (16) in the tire circumferential direction.

6. A tyre with a silent structure as claimed in claim 5, wherein the distance between the edge of said silent hole region (4) and the edge of said silent structural layer (16) is between 15mm and 30 mm.

7. A tire with a silent structure, as claimed in claim 1, wherein said silent holes (41) have hole walls (42) formed therebetween, and said hole walls (42) have a thickness of 0.5mm to 5 mm.

8. A tire of silent structure according to claim 1, wherein said silent holes (41) have a plane area of 1mm²To 36mm²The hole depth of the sound silencing hole (41) is between 2mm and 10 mm.

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